Q: What are the prime factors of the number 1,280,704?

 A: 2, 20011

Why are those the prime factors of the number 1,280,704?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 1,280,704

1,280,704
Factor Arrows
2640,352
Factor Arrows
2320,176
Factor Arrows
2160,088
Factor Arrows
280,044
Factor Arrows
240,022
Factor Arrows
220,011

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 20011

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 20,011 = 1,280,704

This can also be written as 26 x 20,0111 = 1,280,704

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 1,280,704:


Ask a Question